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Boston Public Library
Trademark Searching
Government Documents 

CASSIS is a DVD database supplied by the U.S. Patent and Trademark Office. You can use CASSIS to check if a name is federally registered as a trademark or service mark. Select the icon Home or click on Cassis2. Select Trademarks BIB.

Once you get to a trademark search screen, select the field word mark and type the word or words you want to check. Click on Search; the computer will search the word combination and show how many items were found.Click on Results if there are any entries. To print the results, click on the print icon.

If the word you check is very common, the list may be too long to inspect. You can narrow the list by combining it with a second important word. You can also type the kind of product on the line marked "Goods and Services" -- words like: clothing, game, consultant, or restaurant.

The same trademark may be owned by different users if the products are sufficiently diverse. Conversely, if the product is not substantially different, you may not be able to use a similar TM. Speak with a trademark attorney for advice!

When checking for the name of a company, remember that company names do not have to be trademarked. You should check the database for any names that might be there, but you must also go to a business library and check directories of company names. When searching the database, check only important words from the name; don't use articles or generic words like "company", or "incorporated", or "consultants".

Federal trademarks are used to protect names in interstate commerce. Names used for local products and services may only need to be registered with the state. Check to see if the name you want to use has already been taken at the state level. If it hasn't, contact the Department of Corporations, 1 Ashburton Place, Boston, MA, 617-727-8329 or search at http://www.state.ma.us/sec/ and click on Corporations Division and then click on Search a Database

You may use CASSIS as well as the Trademark Official Gazette to find a copy of the trademark logo. Once you have found the details of a TM on CASSIS, copy down the date published, the international classification number, and the serial number. Take that information and find the Gazette; find the Gazette by the date the TM was published. Within the Gazette, find the section for the particular international class. Within the class listing, the logos are arranged in order by serial number. If more than one class is listed, search the Gazette by the serial number in the section marked "Applications in more than one class".
You can do the same search on the USPTO's website at http://www.uspto.gov/main/trademarks.htm



For more instructions on how to use the Cassis database from the USPTO's website
at http://www.uspto.gov/web/offices/ac/ido/ptdl/tmsearch.html

Copies of applications are available in a brochure entitled:
Basic Facts About Registering a Trademark. You can obtain a current copy from the Government Printing Office Bookstore, 10 Causeway St., Boston, 617-720-4180.
The website for searching Federal Trademark Information: http://www.uspto.gov/web/menu/tm.html

 


 


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